[  482.072013] netdevsim netdevsim642 eni642np1: renamed from eth1
[  482.171945] netdevsim netdevsim481 eni481np1: renamed from eth0
[  482.536074] Could not find device with ifindex 2000 in netnsfd 11
[  482.536250] Could not find netns with fd: 2000
[  482.536353] Cannot link a netdevsim to itself
[  482.536484] Format for linking two devices is "netnsfd_a:ifidx_a netnsfd_b:ifidx_b" (int uint int uint).